Bunghole closure



H. HILL BUNGHOLE CLOSURE Sent.

Gwenn? Patented June Z4, 1924.

HARRISON HILL, OF BURR OAK, KANSAS.

BUNGI-IOLE GLOSURE.

Application filed September 10, 1923. Serial 110.661,802.

T0 all lwhom it may concern.'

Be it known that I, HARRISON HILL, a citizen of the United States,residing at Burr Oak, in the county of Jewell and State of Kansas, haveinvented certain new and useful Improvements in Bunghole Closures, ofwhich the following is a specification.

My invention relates to improvements in bung-hole closures for tanks andother containers, in which gasoline, oil or other liquids may be stored.

The object of the invention is to provide a novel bung-hole closure withan air vent which may be sealed, so that liquid cannot be drawn from thecontainer through the' regular discharge valve, due to the air-lockexisting in said'cont-ainer.

In order that the invention may be fully understood, reference will nowbe had to the accompanying drawing, in which:

Fig. 1 is a side elevation of a storage tank equipped with the closure.

Fig. 2 is an enlarged broken plan view of the container with the closurein position thereon.

Fig. 3 is a detail inverted plan view of the closure. l

Fig. 4 is a broken cross section on line IV--IV of Fig. 2, with the airvent of the closure in open position.

Fig. 5 is a broken cross section on the plane of line IV-IV of Fig. 2,with the air vent of the closure sealed. v

Referring now in detail to the various parts, A. designates a containerprovided at its upper portion with a bung-hole B and at one end with avalve C through which liquid may be drawn from the container when theair vent in the closure is opened.

2 designates the bung-hole closure which comprises a plug 4, a cap 6, abolt 8, and a keeper 10. The plug 4 is exterior-ly threaded to engagethe internal threads of the bung-hole B and has a hexagonal or otherangular flange 12 for engagement by a wrench or other suitable toolwhereby the plug 4 may be screwed in or out of the bunghole B. The plug4 has an eccentric vent 14 through which the bolt 8 freely extends asshown by Figs. 4 and 5. l

The cap 6 is interiorly threaded to engage the threads of the bolt 8 andhas a downturned marginal flange 16 and a centrallydisposed angularportion 18, whereby it may be engaged by a wrench or other tool to(screw the cap 6 up or down on the bolt 8.

The bolt 8 after being passed through the plug 4 and the cap 6 iscrowned at its upper end 2() to coact with the keeper 10, fixed to thelower end of the bolt 8, in preventing removal of the plug 4 and the cap6.

The keeper 10 is of such length as to permit it to pass through thebung-hole B and has an extension 22 at one end and aset screw 24 at itsopposite end provided with a lock nut 26 for securing it at any point ofits adjustment.

In practice the keeper 10 is adjusted relativelyV to the plug 4 asshownby Fig. 4, so

that it may pass through the bungehole rB F and permit the plug 4to bescrewed into said bung-liole until the flange 12 engages the adjacentwall of the container A. The cap 6 with the bolt 8 is then rotated ahalf revolution to positionthe set screw 24 to one side of the plug '4,Fig. 5. rIhe cap 6 and the bolt 8 are then raised until the set screw 24contacts the inner surface of the container A, after which the cap 6 isscrewed down upon the bolt 8 and into engagement with the top of theplug 4, thereby sealing the vent 14 so that liquid'cannot be drawn olfthrough'the valve C. When the,cap 6 is being screwed down upon the bolt8, as

stated, the latter is prevented from turning.

by the keeper 10, which abuts one side of a stop 28 on the underside ofthe plug 4. The keeper 10 and the stop 28 also prevent the' bolt 8 fromturning while the cap 6 is being unscrewed. The cap 6 is then secured bysuitable means such as a padlock E, the hasp F of which is passedthrough a transverse hole 30 in the bolt 8. The downturnedy flange 16 ofthe cap 6 preventsaccess to the rectangular portion 12 of the plug 4, sothat the same cannot be removed from the bunghole B without firstremoving the padlock .E In some instances suflicientl leeway is leftbetween the hasp F of the padlock E and the top of the angular portion18 of the cap 6 to permit the latter to be unscrewed n a partial turn touncover the vent 14so that liquid may be drawn off through the valve Cwithout removing the padlock E.

From the foregoing description it will be understood that I haveprovided a device embodying the features above pointed out, and while Ihaveshown and described the preferred construction, combination andarrangement of parts, I reserve the right to make such changes asproperly fall within the spirit and scope of the appended claims..r

Having thus described my invention, what l claim and desire to secure byLetters Patent, is;

l. In a device of the character described, a plug adapted to be screwedinto the bunghole of a. container and provided wit-h an eccentricallylocated vent, a bolt extending through said vent, a keeper fixed to thelower end of said bolt and adapted to pass through the bung-hole whenthe bolt is turned in one direction and project to one side of thecircumference of the bung-hole when the bolt is turned in an oppositedirection, a member carried by the keeper andy adapted to engage theinner surface of the container when the bolt is turned in the lastHmentioned direction, and an element threaded on the bolt to seal thevent and hold said member in engagement with the inner surface of thecontainer.

2. In a device of the character described, a plug adapted to be screwedinto t-he bunghole of a container and provided with an eccentricallylocated vent, a bolt extending through said vent, a keeper fixed to thelower end of said bolt and adapted to pass through the bung-hole whenthe bolt is turned in one direction and, project to one side of thecircumference of the bung-hole when the bolt is turned in an oppositedirection, a member carried by the keeper and adapted to engage theinner surface of the container when the bolt is turned in thelastmentioned direction, and a cap threaded on the boltto hold saidmember in engagement with the inner surface of the container andprovided with a marginal downturned flange to cover the upper margin ofthe plug.

3. In a device of the character described, a plug adapted to be screwedinto the bunghole of a container and provided with an eccentricallylocated vent, a bolt extending through said vent, a keeper fixed to thelower end of said bolt and adapted to pass through the bung-hole whenthe bolt is turned in one direction and project to one side of thecircumference of the bung-hole when the bolt is turned in an oppositedirection, a. member carried by the keeper and adapted to engage theinner surface of the container when the bolt is turned in thelastmentioned direction, a cap threaded en the bolt to hold said memberin engagemenr with the inner surface of the container and provided witha marginal. downturned flange to cover the upper margin of the plug, andmeans on the lower portion of the plug to prevent the keeper and thebolt from turning while the cap is being screwed upon or unscrewed fromthe bolt.

e. ln a device of the character described7 a plug adapted to be screwedinto the bung hole of a container and provided with an eccentricallylocated vent, a bolt extending through said vent, a keeper fixed to thelower end of said bolt and adapted. to pass through the bung-hole when`the bolt is turned in one direction and project to one side of thecircumference of the bung-hole when the bolt is turned in an oppositeldirection, a member carried by the keeper and adapted to engage theinner surface of the container when the bolt is turned in thelastmentioned direction, a cap threaded on the bolt to hold said memberin engagement, with the inner surface of the container. and meansremovably engaging the bolt above said cap to prevent the same frombeing unscrewed.

in testimony whereof I affix my signature, in the presence of twowitnesses.

HARRISON HILL.

VJitnesses WILLIAM J. GABEL, JACOB J. KINDSGHEB..

